JP2012502434A5 - - Google Patents
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- JP2012502434A5 JP2012502434A5 JP2011526255A JP2011526255A JP2012502434A5 JP 2012502434 A5 JP2012502434 A5 JP 2012502434A5 JP 2011526255 A JP2011526255 A JP 2011526255A JP 2011526255 A JP2011526255 A JP 2011526255A JP 2012502434 A5 JP2012502434 A5 JP 2012502434A5
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- JP
- Japan
- Prior art keywords
- aluminum
- paste
- aluminum powder
- powder
- nodular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 54
- 229910052782 aluminium Inorganic materials 0.000 claims description 33
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 238000010304 firing Methods 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010344 co-firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
Description
表１に示した実施例ＡからＦは、球状アルミニウム粉末の割合に対する、アルミニウムペーストの電気特性および反り挙動を示す。表１のデータによれば、実施例ＢからＥに従うアルミニウムペーストを用いて作製した太陽電池は、対照ペーストＡおよびＦのアルミニウムペーストを用いて作製した太陽電池に比べて、電池の電気性能と反りとのバランスがより良好である。
本発明は以下の実施の態様を含むものである。
１．粒状アルミニウムと、有機溶剤を含む有機ビヒクルとを含むアルミニウムペーストであって、前記粒状アルミニウムは、３０から９０重量％の球状アルミニウム粉末と、１０から７０重量％の結節状アルミニウム粉末とを含み、前記重量％は、前記球状アルミニウム粉末と前記結節状アルミニウム粉末との和を基準とする、アルミニウムペースト。
２．前記粒状アルミニウムは、５０から７５重量％の球状アルミニウム粉末と、２５から５０重量％の結節状アルミニウム粉末とを含み、前記重量％は、前記球状アルミニウム粉末と前記結節状アルミニウム粉末との和を基準とする、前記１．に記載のアルミニウムペースト。
３．前記粒状アルミニウムは、６０から７０重量％の球状アルミニウム粉末と、３０から４０重量％の結節状アルミニウム粉末とを含み、前記重量％の基準は、前記球状アルミニウム粉末と前記結節状アルミニウム粉末との和を基準とする、前記２．に記載のアルミニウムペースト。
４．前記粒状アルミニウムに対する、球状アルミニウム粉末と結節状アルミニウム粉末との前記和の割合は、９０重量％を超える、前記１．から３．のいずれかに記載のアルミニウムペースト。
５．前記粒状アルミニウムに対する、球状アルミニウム粉末と結節状アルミニウム粉末との前記和の割合は、１００重量％である、前記４．に記載のアルミニウムペースト。
６．前記粒状アルミニウムは、アルミニウムペースト組成物の総量に対して５０から８０重量％の比率で存在する、前記１．から５．のいずれかに記載のアルミニウムペースト。
７．ガラスフリットを、アルミニウムペースト組成物の総量に対して０．０１から５重量％の合計比率でさらに含む、前記１．から６．のいずれかに記載のアルミニウムペースト。
８．前記有機ビヒクルはさらに、有機ポリマーおよび／または有機添加物を含む、前記１．から７．のいずれかに記載のアルミニウムペースト。
９．（ｉ）ｐ型領域、ｎ型領域、およびｐーｎ接合部を有するシリコンウェハの裏面に、請求項１から８のいずれか一項に記載のアルミニウムペーストを塗布するステップと、
（ｉｉ）前記アルミニウムペーストを塗布した面を焼成して、前記ウェハを７００から９００℃のピーク温度に到達させるステップと、
を含む、シリコン太陽電池の形成方法。
１０．前記アルミニウムペーストの前記塗布は、印刷によって行われる、前記９．に記載の方法。
１１．焼成は、焼成時に前記シリコンウェハ上に前面および／または裏面電極を形成するために、前記シリコンウェハに塗布されている他の前面および／または裏面金属ペーストとまとめて同時焼成として行われる、前記９．または１０．に記載の方法。
１２．前記９．から１１．のいずれかに記載の方法によって作製されるシリコン太陽電池。
１３．アルミニウム裏面電極を備えるシリコン太陽電池であって、前記アルミニウム裏面電極は、前記１．から８．のいずれかに記載のアルミニウムペーストを利用して製造される、シリコン太陽電池。
１４．シリコンウェハをさらに備える、前記１３．に記載のシリコン太陽電池。
Examples A to F shown in Table 1 show the electrical properties and warping behavior of the aluminum paste with respect to the proportion of spherical aluminum powder. According to the data in Table 1, the solar cells made using the aluminum pastes according to Examples B to E are compared to the solar cells made using the control pastes A and F aluminum pastes and the battery electrical performance and warpage. And the balance is better.
The present invention includes the following embodiments.
1. An aluminum paste comprising granular aluminum and an organic vehicle containing an organic solvent, the granular aluminum comprising 30 to 90 wt% spherical aluminum powder and 10 to 70 wt% nodular aluminum powder, % By weight is an aluminum paste based on the sum of the spherical aluminum powder and the nodular aluminum powder.
2. The granular aluminum includes 50 to 75% by weight of spherical aluminum powder and 25 to 50% by weight of nodular aluminum powder, and the weight% is based on the sum of the spherical aluminum powder and the nodular aluminum powder. And 1. Aluminum paste described in 1.
3. The granular aluminum contains 60 to 70% by weight of spherical aluminum powder and 30 to 40% by weight of nodular aluminum powder, and the weight percentage is based on the sum of the spherical aluminum powder and the nodular aluminum powder. And 2. Aluminum paste described in 1.
4). The ratio of the sum of the spherical aluminum powder and the nodular aluminum powder to the granular aluminum is more than 90% by weight. To 3. The aluminum paste in any one of.
5). The ratio of the sum of the spherical aluminum powder and the nodular aluminum powder to the granular aluminum is 100% by weight. Aluminum paste described in 1.
6). The granular aluminum is present in a ratio of 50 to 80% by weight based on the total amount of the aluminum paste composition. To 5. The aluminum paste in any one of.
7). The glass frit is further contained in a total ratio of 0.01 to 5% by weight based on the total amount of the aluminum paste composition. To 6. The aluminum paste in any one of.
8). The organic vehicle further comprises an organic polymer and / or an organic additive. To 7. The aluminum paste in any one of.
9. (I) applying the aluminum paste according to any one of claims 1 to 8 to a back surface of a silicon wafer having a p-type region, an n-type region, and a pn junction;
(Ii) firing the surface coated with the aluminum paste to allow the wafer to reach a peak temperature of 700 to 900 ° C .;
A method for forming a silicon solar cell, comprising:
10. 8. The application of the aluminum paste is performed by printing. The method described in 1.
11. Firing is performed as a co-firing together with other front and / or back metal pastes applied to the silicon wafer to form front and / or back electrodes on the silicon wafer during firing. . Or 10. The method described in 1.
12 9 above. To 11. A silicon solar cell produced by the method according to any one of the above.
13. A silicon solar cell including an aluminum back electrode, wherein the aluminum back electrode is To 8. A silicon solar cell produced using the aluminum paste according to any one of the above.
14 The silicon wafer according to claim 13, further comprising a silicon wafer. A silicon solar cell according to 1.
Claims (3)
（ｉｉ）前記アルミニウムペーストを塗布した面を焼成して、前記ウェハを７００から９００℃のピーク温度に到達させるステップと、
を含む、シリコン太陽電池の形成方法。 (I) applying the aluminum paste according to claim 1 to a back surface of a silicon wafer having a p-type region, an n-type region, and a pn junction;
(Ii) firing the surface coated with the aluminum paste to allow the wafer to reach a peak temperature of 700 to 900 ° C .;
A method for forming a silicon solar cell, comprising:
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9445808P | 2008-09-05 | 2008-09-05 | |
| US61/094,458 | 2008-09-05 | ||
| PCT/US2009/056156 WO2010028325A1 (en) | 2008-09-05 | 2009-09-08 | Aluminum pastes and use thereof in the production of silicon solar cells |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012502434A JP2012502434A (en) | 2012-01-26 |
| JP2012502434A5 true JP2012502434A5 (en) | 2012-11-01 |
| JP5438113B2 JP5438113B2 (en) | 2014-03-12 |
Family
ID=41258420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011526255A Expired - Fee Related JP5438113B2 (en) | 2008-09-05 | 2009-09-08 | Use of aluminum paste and aluminum paste in the production of silicon solar cells |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8398896B2 (en) |
| EP (1) | EP2319051B1 (en) |
| JP (1) | JP5438113B2 (en) |
| KR (1) | KR20110053263A (en) |
| CN (1) | CN102144264A (en) |
| TW (1) | TW201015589A (en) |
| WO (1) | WO2010028325A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090229665A1 (en) * | 2008-03-13 | 2009-09-17 | E. I. Du Pont De Nemours And Company | Aluminum pastes and use thereof in the production of silicon solar cells |
| KR20100088471A (en) * | 2009-01-30 | 2010-08-09 | 엘지디스플레이 주식회사 | Method for fabricating thin film solar cell |
| US8906269B2 (en) * | 2009-04-07 | 2014-12-09 | Lg Innotek Co., Ltd. | Paste and solar cell using the same |
| KR101587267B1 (en) * | 2009-04-07 | 2016-01-27 | 엘지이노텍 주식회사 | Aluminium paste complex and solar battery using the same |
| US8535971B2 (en) * | 2010-02-12 | 2013-09-17 | Heraeus Precious Metals North America Conshohocken Llc | Method for applying full back surface field and silver busbar to solar cell |
| TWI432550B (en) | 2010-12-30 | 2014-04-01 | China Steel Corp | Lead - free conductive adhesive and its manufacturing method |
| CN102522156A (en) * | 2011-12-06 | 2012-06-27 | 南昌大学 | Preparation method of aluminum boron slurry for crystalline silicon solar battery |
| CN103310871A (en) * | 2012-03-15 | 2013-09-18 | 江苏新源动力有限公司 | Slurry for solar cells and preparation methods of slurry |
| JP6065912B2 (en) * | 2012-08-31 | 2017-01-25 | パナソニックＩｐマネジメント株式会社 | Manufacturing method of solar cell |
| US9966479B2 (en) * | 2014-06-12 | 2018-05-08 | E I Du Pont De Nemours And Company | Aluminum-tin paste and its use in manufacturing solderable electrical conductors |
| CN106158072B (en) * | 2016-08-30 | 2017-10-17 | 南通天盛新能源股份有限公司 | A kind of crystal-silicon solar cell low warpage back side aluminium paste |
| US10608128B2 (en) * | 2018-07-23 | 2020-03-31 | Pancolour Ink Co., Ltd | Aluminum paste used for local back surface field solar cell and local back surface field solar cell using the aluminum paste |
| CN117059303B (en) * | 2023-09-05 | 2024-04-16 | 江苏飞特尔通信有限公司 | Conductive aluminum paste for external electrode of LTCC filter and preparation method of conductive aluminum paste |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4617056A (en) * | 1983-12-29 | 1986-10-14 | Sermatech International, Inc. | Thick coating compositions |
| US4724172A (en) * | 1983-12-29 | 1988-02-09 | Sermatech International, Inc. | Thick coating compositions |
| US5066540A (en) * | 1987-01-23 | 1991-11-19 | Sermatech International, Inc. | Flake materials in coating compositions |
| JP2002076398A (en) | 2000-08-29 | 2002-03-15 | Sanyo Electric Co Ltd | Photovoltaic device |
| US20040055635A1 (en) | 2002-09-19 | 2004-03-25 | Hiroshi Nagakubo | Conductive paste, method for manufacturing solar battery, and solar battery |
| DE10315775A1 (en) * | 2003-04-04 | 2004-10-14 | Eckart Gmbh & Co. Kg | Thin opaque aluminum pigments, process for producing the same and use of the aluminum pigments |
| KR100719993B1 (en) * | 2003-09-26 | 2007-05-21 | 히다치 가세고교 가부시끼가이샤 | Mixed Conductive Powder and Use Thereof |
| JP4790238B2 (en) * | 2004-08-27 | 2011-10-12 | 鬼怒川ゴム工業株式会社 | Conductive elastic body composition |
| US7771623B2 (en) * | 2005-06-07 | 2010-08-10 | E.I. du Pont de Nemours and Company Dupont (UK) Limited | Aluminum thick film composition(s), electrode(s), semiconductor device(s) and methods of making thereof |
| US7718092B2 (en) | 2005-10-11 | 2010-05-18 | E.I. Du Pont De Nemours And Company | Aluminum thick film composition(s), electrode(s), semiconductor device(s) and methods of making thereof |
| JP4847154B2 (en) | 2006-02-24 | 2011-12-28 | 三洋電機株式会社 | Conductive paste composition, solar cell using the paste composition, and solar cell module using the cell |
| US20090229665A1 (en) * | 2008-03-13 | 2009-09-17 | E. I. Du Pont De Nemours And Company | Aluminum pastes and use thereof in the production of silicon solar cells |
| KR101176296B1 (en) * | 2008-04-15 | 2012-08-22 | 이 아이 듀폰 디 네모아 앤드 캄파니 | Aluminum pastes and use thereof in the production of silicon solar cells |
| US8906269B2 (en) * | 2009-04-07 | 2014-12-09 | Lg Innotek Co., Ltd. | Paste and solar cell using the same |
-
2009
- 2009-09-04 TW TW098129909A patent/TW201015589A/en unknown
- 2009-09-04 US US12/554,096 patent/US8398896B2/en active Active
- 2009-09-08 CN CN2009801351036A patent/CN102144264A/en active Pending
- 2009-09-08 KR KR1020117007759A patent/KR20110053263A/en not_active Application Discontinuation
- 2009-09-08 JP JP2011526255A patent/JP5438113B2/en not_active Expired - Fee Related
- 2009-09-08 EP EP09792293.4A patent/EP2319051B1/en not_active Not-in-force
- 2009-09-08 WO PCT/US2009/056156 patent/WO2010028325A1/en active Application Filing
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